Techniques for the collectio and reporting of data on community water supply report of a WHO scientific group
| Corporate Authors: | World Health Organization (-) |
|---|---|
| Format: | Book |
| Bahasa: | eng |
| Terbitan: |
Geneva :
World Health Organization
, 1974
|
| Series: |
World Health Organization technical report series ;
no. 490 |
| Subjects: |